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Kelman DGA 900 Plus
GE Kelman DGA 900 Plus User Manual
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GEDE-GA_M-DLIS-TE.MA-041
Rev 1.1
4-Mar-
22
GE
Grid Solutions
Kelman™ DGA 900 Plus
Transformer
Monitoring
System
Installation & Comm
issioning Manual
2
Table of Contents
Table of Contents
2
Introduction
7
Product Overview
7
Scope
7
Safety
8
Symbols
8
Safety Statements
8
Technical Specifications
10
Compliance
12
Transformer Monitoring System (TMS)
13
TMS Options
15
Card Option #1: Thermal Models
17
Sensor Input Configuration
17
Wiring
17
Temperature Sensors
18
CT Sensors
21
Card Option #2: Cooling Status Monitor
23
Sensor Input Configuration
23
Wiring
24
Card Option #3: OLTC Monitor
26
Sensor Input Configuration
26
Tap Position Sensor
26
Motor Torque Measurement
26
Motor Power Converter
30
Card Option #4: Bushing & PD Monitor
33
Installation Layout
33
Inside the Hub Module
34
Power & Communications
36
Bushing Adaptors
36
Bushing Adaptor Cables
37
Install a Bushing Adaptor
44
High Frequency Current Transformer (HFCT)
47
Magnetically Mounted Temperature Sensors
50
Cabinet Connections
52
Bushing Adaptors & Neutral CT(S)
52
Magnetically-Mounted Temperature Sensors
53
Bushing Adaptor Circuit Integrity Test Record
54
Required Material
54
Test Procedure
55
Commissioning & Service
71
Factory Settings
71
Models
72
OLTC Monitor Commissioning
73
Prerequisite Commissioning Steps
74
Establish Baseline Settings
77
Download DGA 900 Plus Data to Perception
79
Generate Configuration Files
81
Import Configuration Files to DGA 900 Plus
85
Finalisation
85
Bushing & PD Monitor Commissioning
87
General Settings
87
Voltage Measurement
87
C1% Measurement
88
Tan Δ (Power Factor) Measurement
89
PD Live HF Noise Threshold Measurement
90
PDI Associated Power Measurement
91
PD Average Apparent Charge Measurement
92
PD Max Apparent Charge Measurement
92
Export Setting
94
Finalisation
95
Parts and Tools List for Bushing & PD Monitor
96
GE-Supplied Items (Shipped with the Product)
96
GE Field Service Engineer (FSE)-Supplied Items
97
Customer-Supplied Items
98
Contact & Copyright Details
99
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GE Kelman DGA 900 Plus Specifications
General
Brand
GE
Model
Kelman DGA 900 Plus
Category
Measuring Instruments
Language
English
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